Commentaries:
Our battle is to bring down every deceptive argument and every imposing defense that men erect against the true knowledge of God. We fight to capture every thought until it acknowledges the authority of Christ. Once we are sure of your obedience we are ready to punish every disobedience. (Phillips)
Paul makes it very clear that we are involved in a war! This does not mean that this warfare will always be going on at the same level of intensity. In warfare between nations and states, there are lulls in the battle as one side or the other prepares to make their next push. There are short periods during war in which a great number of people die or are injured, which are usually followed by longer periods when the two sides regather their strength, regroup, and get ready for the next attack.
It will be much the same way in the warfare we are involved in. I am here to tell you, please do not let down when it appears as if nothing is happening.Those very dangerous periods of time—the easy times, the good times, the affluent times.
John W. Ritenbaugh
Endure as a Good Soldier